August 14th, 1288 is an important date in the annals of Dusseldorf. On this day the sovereign, Count Adolf V von Berg, granted the village on the banks of the Dussel the right to call itself a city. Prior to that a bloody power struggle between the powerful Archbishop of Cologne and the Berg nobility had taken place, culminating in the battle of Worringen. Enemy forces wiped out the army of Cologne on 5 June 1288 and dashed the Archbishop's ambitions. The Stadterhebungsmonument (monument celebrating Dusseldorf's elevation to city status) on the Burgplatz serves as a reminder of this epic event.